Finding the Fourth Proportional to 351,790.12, 486,113.22 and 256,129.96
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Solution
The fourth proportional to 351,790.12, 486,113.22 and 256,129.96 is: 353,927.39
Step by Step Solution
- Step 1: Write the proportion equation
351,790.12 : 486,113.22 = 256,129.96 : x - Step 2: Convert to fraction form
351,790.12/486,113.22 = 256,129.96/x - Step 3: Cross multiply
351,790.12x = 486,113.22 × 256,129.96 - Step 4: Simplify right side
351,790.12x = 124,508,159,594.07 - Step 5: Solve for x
x = 124,508,159,594.07/351,790.12 - Step 6: Final answer
x = 353,927.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.